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All results from a given calculation for C4H3ClO (Furan, 2-chloro)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-684.771089
Energy at 298.15K-684.774802
HF Energy-684.159472
Nuclear repulsion energy260.820209
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3341 3178 0.10      
2 A' 3314 3153 0.72      
3 A' 3295 3134 0.55      
4 A' 1553 1478 17.45      
5 A' 1465 1394 40.02      
6 A' 1389 1321 20.76      
7 A' 1276 1214 8.14      
8 A' 1180 1122 27.35      
9 A' 1136 1080 38.34      
10 A' 1043 992 16.99      
11 A' 1024 975 11.12      
12 A' 914 869 3.13      
13 A' 894 851 24.82      
14 A' 487 463 3.65      
15 A' 306 291 0.28      
16 A" 821 781 5.21      
17 A" 790 751 21.34      
18 A" 734 698 68.98      
19 A" 621 591 7.61      
20 A" 602 573 4.18      
21 A" 223 212 2.54      

Unscaled Zero Point Vibrational Energy (zpe) 13202.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 12559.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/3-21G*
ABC
0.29785 0.06927 0.05620

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.287 0.000
C2 1.310 -0.119 0.000
C3 1.287 -1.572 0.000
C4 -0.029 -1.961 0.000
O5 -0.875 -0.816 0.000
Cl6 -0.717 1.843 0.000
H7 2.175 0.524 0.000
H8 2.146 -2.225 0.000
H9 -0.540 -2.908 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.37162.26072.24811.40731.71342.18803.30343.2397
C21.37161.45242.27692.29312.82141.07802.26523.3463
C32.26071.45241.37232.29053.95932.27571.07872.2638
C42.24812.27691.37231.42423.86583.32132.19031.0759
O51.40732.29312.29051.42422.66303.33113.33322.1186
Cl61.71342.82143.95933.86582.66303.17904.97424.7536
H72.18801.07802.27573.32133.33113.17902.74874.3758
H83.30342.26521.07872.19033.33324.97422.74872.7715
H93.23973.34632.26381.07592.11864.75364.37582.7715

picture of Furan, 2-chloro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 106.326 C1 C2 H7 126.141
C1 O5 C4 105.111 C2 C1 O5 111.211
C2 C1 Cl6 131.975 C2 C3 C4 107.390
C2 C3 H8 126.364 C3 C2 H7 127.533
C3 C4 O5 109.962 C3 C4 H9 134.889
C4 C3 H8 126.246 O5 C1 Cl6 116.814
O5 C4 H9 115.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability